Locking device.



J. C. RICHMOND.

LOCKING DEVICE.

APPLICATION FILED 111 11.13, 1914.

1,125,71 6, Patented Jan. 19, 1915.

2 SHEETS-$111131 1.

J. G. RICHMOND.

LOOKING DEVICE. APPLIOATION FILED 11 111.13, 1914.

1,125,716. Patented Jan.19, 1915 2 SHEETS-SHEET 2.

THE NORRIS PETERS ca, PHOTOYLITHQ, wAsHlNcroN, n. c.

ET ()FFTGE.

' JOHN G. nIcrr'Monn. or'nntrnn, UTAH.

LOOKING DEVICE.

To all whom it may concern Be it known that I, JOHN C. RICHMOND, a citizen of the United States, residing at Helper, in the county of Carbon and'State of Utah, have invented certam new and use ful Improvements in Looking Devices; and I do hereby declare the following. to be a full, clear, and exact description of the invention, such as will enable others skilled 111 the art to which it appertains tomake and use the same. a

My inventionis directed to the provis on of a device adapted to hold the packing glands or nuts of .a locomotive air pump or other machine against accidental movement,

the invention comprehending a device which may be readily and quicklyapplled and removed and which will permit of the adjustment of the packing glands or nuts.

A further object of the invention is the provision or" a locking device for packing glands or nuts which shall be simple, durable and efiicient, which shall comprise but few parts, and which may be manufactured and sold at a comparatively low cost.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinait'ter fully described and claimed, and illustrated in the accompanying drawing, wherein:

Figure 1 is a sectional view illustrating the application of my locking device to the packing glands or nuts of a locomotive air pump; Fig. 2 is a sectional view taken on the horizontal plane indicated by the line 22 of Fig. 1; Fig. 3 is a similar view taken on the line 3-3 of Fig. 1, and, Fig. A is a detail perspective view of the locking de vice.

Referring to the drawings by reference numerals, 1 designates the head of the air cylinder and 2 the head of the steam cylinder of a locomotive air pump of the usual form and construction. The heads 1 and 2 are provided with packing glands or nuts 3 and 4:, respectively.

5 designates the piston rod of the pump.

To permit the application of my locking device to the glands or nuts 3 and t, they are provided with notches 6. The locking device comprises an upper clamping ring 7 and a lower clamping ring 8, which. are duplicates in construction except that the upper clamping ring 7 is provided with Specification of Letters latnt.

Patented Jan. 19, 1915.

Application filed April 13, 1914. Serial No. 831,595.

and et. The rings are connected together through the medium of a bar 11 which is received by offsets 12 formed by bending the rings upon themselves. The top ring 7 is secured to'the rod 11 against movement thereon by means of a rivet 13, while the bottom ring 8 has a limited adjustment H upon the rod in a direction-toward or away from the ring 7', said adjustm'ent being established through a winged nut 14 which passes through the lug 12 on' the ring 8 and through an elongated slot 15 in the rod 11. This slot extends in a direction longitudinally of the rod.

By reference to Figs. 2 and 8 of the drawings, it will be seen that the inner edge of the rod 11 extends inwardly beyond the inner faces of the rings 7 and 8 and the said projecting edge engages in a longitudinally alined pair of grooves 6 of the glands or nuts 3 and 4:. As the glands or nuts 3 and 41: have right hand threaded connection with the cylinder heads 1 and 2, and as they are mounted one above the other, the engagement of the rod 11 in the notches 6 will hold the glands or nuts against accidental movement since the same must turn in relatively opposite directions to unscrew.

In practice, the rings 7 and 8 and the rod 11 are assembled after which it is only necessary to slip the rings upon the glands or nuts 3 and 4, the rings holding the inner edge of the rod in engagement with an alined pair of the recesses or notches 6. The lugs 9 of the ring 7 engage the upper side of the gland or nut 4 and hold the device from downward movement with relation to the glands or nuts. If it becomes necessary to tighten the glands or nuts 3 and 4, the device may be readily removed by grasping the rod 11 and exerting a lateral pull there on. After the glands or nuts have been tightened, the device is again applied. The ring 8 may be adjusted with relation to the ring 7 to compensate for the change in the distance between the glands or nuts 3 and 4 as the result of their being tightened. After the adjustment of the ring has been efiected, the nut 14 is turned up to hold the ring against accidental movement on the rod 11.

From the foregoing description taken in connection with the accompanying drawing, it should be apparent that I provide a gland or nut locking device which is simple, durable, and efiicient, which may be readily and quickly applied and removed, which Will permit of the adjustment of the glands or nuts, and which may be manufactured and sold at a comparatively low cost.

Various changes maybe made in the details of construction without departing from the spirit and scope of the invention as defined in the claims.

Having thus described my invention, what I claim as new and desire to secure by Let ters-Patent is:- V

1, A locking device of the character set forth comprising a pair of rings, and a rod carried by and connecting the rings, the inner edge of said rod extending inwardly beyond the inner faces of the rings 7 A locking device of the character set forth comprising a ring provided at its upper edge with a supporting lug, a rod caror as at at, be was for ried by the ring, and another ring secured to the rod, said rod extending inwardly beyond the innerfaces of the rings.

3. A locking device of the character set forth comprising a ring, a rod carried by ring, and another ring adjustably mounted upon the rod, the rod extending inwardly beyond the inner faces of the rings.

5. A lockingdevice of the character set forth comprising. an attaching member, a rod carried by the attaching member, and another attaching member having an ,ad]'ustable engagement with the rod.

In testimony whereof-'1 affix my signature in presence of two witnesses.

, JOHN (J. nicnnonn. Witnesses N. W. Evans,

G. H. DEnRYBnRnY.

Washington, D. G. 

